<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  
  <title>logback系列三之LoggerContext、Logger | Hexo</title>
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
  <meta name="description" content="StaticLoggerBinder　　我们进入StaticLoggerBinder类，其有一个成员变量LoggerContext，该类实现了org.slf4j.ILoggerFactory，（在slf4j-log4j中则是由Log4jLoggerFactory实现org.slf4j.ILoggerFactory），它扮演了LoggerFactory的功能，所以其最核心的方法是getLogger(">
<meta property="og:type" content="article">
<meta property="og:title" content="logback系列三之LoggerContext、Logger">
<meta property="og:url" content="http://yoursite.com/2015/12/15/log/7.logback系列之LoggerContext、Logger/index.html">
<meta property="og:site_name" content="Hexo">
<meta property="og:description" content="StaticLoggerBinder　　我们进入StaticLoggerBinder类，其有一个成员变量LoggerContext，该类实现了org.slf4j.ILoggerFactory，（在slf4j-log4j中则是由Log4jLoggerFactory实现org.slf4j.ILoggerFactory），它扮演了LoggerFactory的功能，所以其最核心的方法是getLogger(">
<meta property="og:updated_time" content="2016-01-29T17:47:36.000Z">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="logback系列三之LoggerContext、Logger">
<meta name="twitter:description" content="StaticLoggerBinder　　我们进入StaticLoggerBinder类，其有一个成员变量LoggerContext，该类实现了org.slf4j.ILoggerFactory，（在slf4j-log4j中则是由Log4jLoggerFactory实现org.slf4j.ILoggerFactory），它扮演了LoggerFactory的功能，所以其最核心的方法是getLogger(">
  
    <link rel="alternative" href="/atom.xml" title="Hexo" type="application/atom+xml">
  
  
    <link rel="icon" href="/favicon.png">
  
  <link href="//fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet" type="text/css">
  <link rel="stylesheet" href="/css/style.css" type="text/css">
  

</head>
<body>
  <div id="container">
    <div id="wrap">
      <header id="header">
  <div id="banner"></div>
  <div id="header-outer" class="outer">
    <div id="header-title" class="inner">
      <h1 id="logo-wrap">
        <a href="/" id="logo">Hexo</a>
      </h1>
      
    </div>
    <div id="header-inner" class="inner">
      <nav id="main-nav">
        <a id="main-nav-toggle" class="nav-icon"></a>
        
          <a class="main-nav-link" href="/">Home</a>
        
          <a class="main-nav-link" href="/archives">Archives</a>
        
      </nav>
      <nav id="sub-nav">
        
          <a id="nav-rss-link" class="nav-icon" href="/atom.xml" title="RSS Feed"></a>
        
        <a id="nav-search-btn" class="nav-icon" title="Search"></a>
      </nav>
      <div id="search-form-wrap">
        <form action="//google.com/search" method="get" accept-charset="UTF-8" class="search-form"><input type="search" name="q" results="0" class="search-form-input" placeholder="Search"><button type="submit" class="search-form-submit">&#xF002;</button><input type="hidden" name="sitesearch" value="http://yoursite.com"></form>
      </div>
    </div>
  </div>
</header>
      <div class="outer">
        <section id="main"><article id="post-log/7.logback系列之LoggerContext、Logger" class="article article-type-post" itemscope itemprop="blogPost">
  <div class="article-meta">
    <a href="/2015/12/15/log/7.logback系列之LoggerContext、Logger/" class="article-date">
  <time datetime="2015-12-14T23:00:00.000Z" itemprop="datePublished">2015-12-15</time>
</a>
    
  <div class="article-category">
    <a class="article-category-link" href="/categories/log/">log</a>
  </div>

  </div>
  <div class="article-inner">
    
    
      <header class="article-header">
        
  
    <h1 class="article-title" itemprop="name">
      logback系列三之LoggerContext、Logger
    </h1>
  

      </header>
    
    <div class="article-entry" itemprop="articleBody">
      
        <h2 id="StaticLoggerBinder"><a href="#StaticLoggerBinder" class="headerlink" title="StaticLoggerBinder"></a>StaticLoggerBinder</h2><p>　　我们进入StaticLoggerBinder类，其有一个成员变量LoggerContext，该类实现了org.slf4j.ILoggerFactory，（在slf4j-log4j中则是由Log4jLoggerFactory实现org.slf4j.ILoggerFactory），它扮演了LoggerFactory的功能，所以其最核心的方法是getLogger(String name)。<br>　　虽然LoggerContext没有显式地采用单例模式，但实际上应用从来不会直接获取到LoggerContext类的实例，都是通过StaticLoggerBinder内的defaultLoggerContext字段来间接引用LoggerContext的实例，而StaticLoggerBinder本身是单例的，所以程序中用到的LoggerContext也始终是同一个实例，这点很重要。</p>
<h2 id="LoggerContext"><a href="#LoggerContext" class="headerlink" title="LoggerContext"></a>LoggerContext</h2><p>　　在log4j中，初始化的工作，如配置文件解析，主要是由LogManager完成。而在logback中则主要是由LoggerContext处理。在LoggerContext的构造方法中，初始化了rootLogger（在log4j中则是由LogManager的静态代码块完成）。下面贴出LoggerContext的getLogger方法。<br><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">public</span> <span class="keyword">final</span> Logger <span class="title">getLogger</span><span class="params">(<span class="keyword">final</span> String name)</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">if</span> (name == <span class="keyword">null</span>) &#123;</span><br><span class="line">    <span class="keyword">throw</span> <span class="keyword">new</span> IllegalArgumentException(<span class="string">"name argument cannot be null"</span>);</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">if</span> (Logger.ROOT_LOGGER_NAME.equalsIgnoreCase(name)) &#123;</span><br><span class="line">    <span class="keyword">return</span> root;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">int</span> i = <span class="number">0</span>;</span><br><span class="line">  Logger logger = root;</span><br><span class="line"></span><br><span class="line">  Logger childLogger = (Logger) loggerCache.get(name);</span><br><span class="line">  <span class="keyword">if</span> (childLogger != <span class="keyword">null</span>) &#123;</span><br><span class="line">    <span class="keyword">return</span> childLogger;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  String childName;</span><br><span class="line">  <span class="keyword">while</span> (<span class="keyword">true</span>) &#123;</span><br><span class="line">    <span class="keyword">int</span> h = LoggerNameUtil.getSeparatorIndexOf(name, i);</span><br><span class="line">    <span class="keyword">if</span> (h == -<span class="number">1</span>) &#123;</span><br><span class="line">      childName = name;</span><br><span class="line">    &#125; <span class="keyword">else</span> &#123;</span><br><span class="line">      childName = name.substring(<span class="number">0</span>, h);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="comment">// move i left of the last point</span></span><br><span class="line">    i = h + <span class="number">1</span>;</span><br><span class="line">    <span class="keyword">synchronized</span> (logger) &#123;</span><br><span class="line">      childLogger = logger.getChildByName(childName);</span><br><span class="line">      <span class="keyword">if</span> (childLogger == <span class="keyword">null</span>) &#123;</span><br><span class="line">        childLogger = logger.createChildByName(childName);</span><br><span class="line">        loggerCache.put(childName, childLogger);</span><br><span class="line">        incSize();</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    logger = childLogger;</span><br><span class="line">    <span class="keyword">if</span> (h == -<span class="number">1</span>) &#123;</span><br><span class="line">      <span class="keyword">return</span> childLogger;</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></p>
<p>　　从上面代码可以看出，其返回一个Logger的关键步骤主要有<br>　　1. 如果name是null，抛出异常，不过这个情况基本是不会发生的<br>　　2. 如果请求的是ROOT Logger，那么就直接返回root<br>　　3. 检查一下请求的Logger是否已经创建过了，如果已经创建过，就直接从loggerCache中返回<br>　　4. 如果还没创建过，那就开始逐层创建，比如请求的Logger的name是com.shc.logback.Demo，那么一共会创建4个Logger，分别是Logger[com]、Logger[com.shc]、Logger[com.shc.logback]、Logger[com.shc.logback.Demo]，下面我们将详细介绍该步骤。</p>
<p>　　第一次进入while循环时，logger为root，查看该root是否存在名为com的child，如果没有则创建，并放入loggerCache，再调用incSize使logger的数据加一，最后将刚创建的childLogger赋值给logger<br>　　再次进入while循环时，此时logger为上一步创建的名称为com的logger，判断其存在名为com.shc的child，重复上面的步骤直至退出循环。<br>　　这里需要重点说明一下，getChildByName和createChildByName两个方法。在Logger中，维护了一个类型为List<logger>的属性childrenList，getChildByName就是通过循环该list，查看是否存在子logger。在createChildByName方法中根据该参数名新建一个子Logger，并放入父Logger的childrenList中。并且Logger的构造函数的第二个参数为父Logger对象。<br>　　由此，我们可以看出，<strong>Logger自身就维护了父子的关系，这样就为logger的继承关系打下了简单精巧的基础</strong>，大赞，基本上甩log4j九条街啊！<br><figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br></pre></td><td class="code"><pre><span class="line"><span class="function">Logger <span class="title">getChildByName</span><span class="params">(<span class="keyword">final</span> String childName)</span> </span>&#123;</span><br><span class="line">  <span class="keyword">if</span> (childrenList == <span class="keyword">null</span>) &#123;</span><br><span class="line">    <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">  &#125; <span class="keyword">else</span> &#123;</span><br><span class="line">    <span class="keyword">int</span> len = <span class="keyword">this</span>.childrenList.size();</span><br><span class="line">    <span class="keyword">for</span> (<span class="keyword">int</span> i = <span class="number">0</span>; i &lt; len; i++) &#123;</span><br><span class="line">      <span class="keyword">final</span> Logger childLogger_i = (Logger) childrenList.get(i);</span><br><span class="line">      <span class="keyword">final</span> String childName_i = childLogger_i.getName();</span><br><span class="line"></span><br><span class="line">      <span class="keyword">if</span> (childName.equals(childName_i)) &#123;</span><br><span class="line">        <span class="keyword">return</span> childLogger_i;</span><br><span class="line">      &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="comment">// no child found</span></span><br><span class="line">    <span class="keyword">return</span> <span class="keyword">null</span>;</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function">Logger <span class="title">createChildByName</span><span class="params">(<span class="keyword">final</span> String childName)</span> </span>&#123;</span><br><span class="line">  <span class="keyword">int</span> i_index = LoggerNameUtil.getSeparatorIndexOf(childName, <span class="keyword">this</span>.name.length() + <span class="number">1</span>);</span><br><span class="line">  <span class="keyword">if</span> (i_index != -<span class="number">1</span>) &#123;</span><br><span class="line">    <span class="keyword">throw</span> <span class="keyword">new</span> IllegalArgumentException(<span class="string">"For logger ["</span> + <span class="keyword">this</span>.name</span><br><span class="line">        + <span class="string">"] child name ["</span> + childName</span><br><span class="line">        + <span class="string">" passed as parameter, may not include '.' after index"</span></span><br><span class="line">        + (<span class="keyword">this</span>.name.length() + <span class="number">1</span>));</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  <span class="keyword">if</span> (childrenList == <span class="keyword">null</span>) &#123;</span><br><span class="line">    childrenList = <span class="keyword">new</span> ArrayList&lt;Logger&gt;(DEFAULT_CHILD_ARRAY_SIZE);</span><br><span class="line">  &#125;</span><br><span class="line">  Logger childLogger;</span><br><span class="line">  childLogger = <span class="keyword">new</span> Logger(childName, <span class="keyword">this</span>, <span class="keyword">this</span>.loggerContext);</span><br><span class="line">  childrenList.add(childLogger);</span><br><span class="line">  childLogger.effectiveLevelInt = <span class="keyword">this</span>.effectiveLevelInt;</span><br><span class="line">  <span class="keyword">return</span> childLogger;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure></logger></p>
<h2 id="u603B_u7ED3"><a href="#u603B_u7ED3" class="headerlink" title="总结"></a>总结</h2><p>　　通过上面的分析，可以看到</p>
<ol>
<li>LoggerContext通过持有Root Logger，从而拥有遍历整个logger树的能力</li>
<li>每个Logger均持有属性，name（名称）、level（级别）、effectiveLevelInt（该Logger的生效级别，会从父Logger继承得到）</li>
<li>每个Logger均持还有两个非常重要的属性，parent和childrenList，这样就实现了Logger的层次结构，形成了父子关系</li>
<li>最顶层的父类会在LoggerContext的getLogger方法中作为RootLogger的子Logger</li>
<li>LoggerContext通过持有RootLogger便可以获取到任意一个logger，好简单精巧的设计！<h2 id="u53C2_u8003_u8D44_u6599"><a href="#u53C2_u8003_u8D44_u6599" class="headerlink" title="参考资料"></a>参考资料</h2><a href="http://kyfxbl.iteye.com/blog/1170283" target="_blank" rel="external">http://kyfxbl.iteye.com/blog/1170283</a><br><a href="http://kyfxbl.iteye.com/category/174620" target="_blank" rel="external">http://kyfxbl.iteye.com/category/174620</a></li>
</ol>

      
    </div>
    <footer class="article-footer">
      <a data-url="http://yoursite.com/2015/12/15/log/7.logback系列之LoggerContext、Logger/" data-id="cijzzpvbp00af1cfss7n5xazw" class="article-share-link">Share</a>
      
      
  <ul class="article-tag-list"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/log/">log</a></li><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/logback/">logback</a></li></ul>

    </footer>
  </div>
  
    
<nav id="article-nav">
  
    <a href="/2015/12/15/log/8.logback系列之debug info等/" id="article-nav-newer" class="article-nav-link-wrap">
      <strong class="article-nav-caption">Newer</strong>
      <div class="article-nav-title">
        
          logback系列四之debug info等
        
      </div>
    </a>
  
  
    <a href="/2015/12/15/log/6.logback系列之初始化/" id="article-nav-older" class="article-nav-link-wrap">
      <strong class="article-nav-caption">Older</strong>
      <div class="article-nav-title">logback系列二之初始化</div>
    </a>
  
</nav>

  
</article>

</section>
        
          <aside id="sidebar">
  
    
  <div class="widget-wrap">
    <h3 class="widget-title">Categories</h3>
    <div class="widget">
      <ul class="category-list"><li class="category-list-item"><a class="category-list-link" href="/categories/cache/">cache</a><span class="category-list-count">3</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/database/">database</a><span class="category-list-count">13</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/docker/">docker</a><span class="category-list-count">6</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/gis/">gis</a><span class="category-list-count">4</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/git/">git</a><span class="category-list-count">2</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/go/">go</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/gradle/">gradle</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/groovy/">groovy</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/hadoop/">hadoop</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/java/">java</a><span class="category-list-count">18</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/linux/">linux</a><span class="category-list-count">4</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/log/">log</a><span class="category-list-count">11</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/mongodb/">mongodb</a><span class="category-list-count">14</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/mq/">mq</a><span class="category-list-count">6</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/mybatis/">mybatis</a><span class="category-list-count">9</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/netty/">netty</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/nginx/">nginx</a><span class="category-list-count">3</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/nio/">nio</a><span class="category-list-count">19</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/nodejs/">nodejs</a><span class="category-list-count">1</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/redis/">redis</a><span class="category-list-count">6</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/rpc/">rpc</a><span class="category-list-count">14</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/spring/">spring</a><span class="category-list-count">5</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/tomcat/">tomcat</a><span class="category-list-count">2</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/zookeeper/">zookeeper</a><span class="category-list-count">2</span></li><li class="category-list-item"><a class="category-list-link" href="/categories/杂项/">杂项</a><span class="category-list-count">2</span></li></ul>
    </div>
  </div>

  
    
  <div class="widget-wrap">
    <h3 class="widget-title">Tags</h3>
    <div class="widget">
      <ul class="tag-list"><li class="tag-list-item"><a class="tag-list-link" href="/tags/aop/">aop</a><span class="tag-list-count">8</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/aspectj/">aspectj</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/cache/">cache</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/classloader/">classloader</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/common-loggings/">common-loggings</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/commonjs/">commonjs</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/database/">database</a><span class="tag-list-count">10</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/docker/">docker</a><span class="tag-list-count">6</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/dubbo/">dubbo</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/fastdfs/">fastdfs</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/gclib/">gclib</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/geohash/">geohash</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/gis/">gis</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/git/">git</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/go/">go</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/gradle/">gradle</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/groovy/">groovy</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/hadoop/">hadoop</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/hessisan/">hessisan</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/java/">java</a><span class="tag-list-count">48</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/javassist/">javassist</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/kafka/">kafka</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/linux/">linux</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/log/">log</a><span class="tag-list-count">11</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/log4j/">log4j</a><span class="tag-list-count">4</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/logback/">logback</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/map/">map</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/memecached/">memecached</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mina/">mina</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mongodb/">mongodb</a><span class="tag-list-count">14</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mq/">mq</a><span class="tag-list-count">6</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mqtt/">mqtt</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/mybatis/">mybatis</a><span class="tag-list-count">9</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/netty/">netty</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/nginx/">nginx</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/nio/">nio</a><span class="tag-list-count">5</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/nodejs/">nodejs</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/postgresql/">postgresql</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/protobuf/">protobuf</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/proxy/">proxy</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/push/">push</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/rabbitmq/">rabbitmq</a><span class="tag-list-count">3</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/redis/">redis</a><span class="tag-list-count">6</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/rpc/">rpc</a><span class="tag-list-count">14</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/sitemesh/">sitemesh</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/sld/">sld</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/slf4j/">slf4j</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/socket/">socket</a><span class="tag-list-count">7</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/spatialite-for-android/">spatialite for android</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/spi/">spi</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/spring/">spring</a><span class="tag-list-count">13</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/tomcat/">tomcat</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/transaction/">transaction</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/web/">web</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/xSocket/">xSocket</a><span class="tag-list-count">7</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/zbus/">zbus</a><span class="tag-list-count">1</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/zookeeper/">zookeeper</a><span class="tag-list-count">2</span></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/数据结构/">数据结构</a><span class="tag-list-count">2</span></li></ul>
    </div>
  </div>

  
    
  <div class="widget-wrap">
    <h3 class="widget-title">Tag Cloud</h3>
    <div class="widget tagcloud">
      <a href="/tags/aop/" style="font-size: 15.38px;">aop</a> <a href="/tags/aspectj/" style="font-size: 11.54px;">aspectj</a> <a href="/tags/cache/" style="font-size: 11.54px;">cache</a> <a href="/tags/classloader/" style="font-size: 10px;">classloader</a> <a href="/tags/common-loggings/" style="font-size: 10px;">common-loggings</a> <a href="/tags/commonjs/" style="font-size: 12.31px;">commonjs</a> <a href="/tags/database/" style="font-size: 16.92px;">database</a> <a href="/tags/docker/" style="font-size: 13.85px;">docker</a> <a href="/tags/dubbo/" style="font-size: 10px;">dubbo</a> <a href="/tags/fastdfs/" style="font-size: 10px;">fastdfs</a> <a href="/tags/gclib/" style="font-size: 10.77px;">gclib</a> <a href="/tags/geohash/" style="font-size: 10px;">geohash</a> <a href="/tags/gis/" style="font-size: 10px;">gis</a> <a href="/tags/git/" style="font-size: 10.77px;">git</a> <a href="/tags/go/" style="font-size: 10px;">go</a> <a href="/tags/gradle/" style="font-size: 10px;">gradle</a> <a href="/tags/groovy/" style="font-size: 10px;">groovy</a> <a href="/tags/hadoop/" style="font-size: 10px;">hadoop</a> <a href="/tags/hessisan/" style="font-size: 11.54px;">hessisan</a> <a href="/tags/java/" style="font-size: 20px;">java</a> <a href="/tags/javassist/" style="font-size: 10px;">javassist</a> <a href="/tags/kafka/" style="font-size: 11.54px;">kafka</a> <a href="/tags/linux/" style="font-size: 12.31px;">linux</a> <a href="/tags/log/" style="font-size: 17.69px;">log</a> <a href="/tags/log4j/" style="font-size: 12.31px;">log4j</a> <a href="/tags/logback/" style="font-size: 13.08px;">logback</a> <a href="/tags/map/" style="font-size: 10px;">map</a> <a href="/tags/memecached/" style="font-size: 10.77px;">memecached</a> <a href="/tags/mina/" style="font-size: 13.08px;">mina</a> <a href="/tags/mongodb/" style="font-size: 19.23px;">mongodb</a> <a href="/tags/mq/" style="font-size: 13.85px;">mq</a> <a href="/tags/mqtt/" style="font-size: 10.77px;">mqtt</a> <a href="/tags/mybatis/" style="font-size: 16.15px;">mybatis</a> <a href="/tags/netty/" style="font-size: 10px;">netty</a> <a href="/tags/nginx/" style="font-size: 11.54px;">nginx</a> <a href="/tags/nio/" style="font-size: 13.08px;">nio</a> <a href="/tags/nodejs/" style="font-size: 10px;">nodejs</a> <a href="/tags/postgresql/" style="font-size: 10.77px;">postgresql</a> <a href="/tags/protobuf/" style="font-size: 10px;">protobuf</a> <a href="/tags/proxy/" style="font-size: 10px;">proxy</a> <a href="/tags/push/" style="font-size: 10px;">push</a> <a href="/tags/rabbitmq/" style="font-size: 11.54px;">rabbitmq</a> <a href="/tags/redis/" style="font-size: 13.85px;">redis</a> <a href="/tags/rpc/" style="font-size: 19.23px;">rpc</a> <a href="/tags/sitemesh/" style="font-size: 10px;">sitemesh</a> <a href="/tags/sld/" style="font-size: 10px;">sld</a> <a href="/tags/slf4j/" style="font-size: 10px;">slf4j</a> <a href="/tags/socket/" style="font-size: 14.62px;">socket</a> <a href="/tags/spatialite-for-android/" style="font-size: 10px;">spatialite for android</a> <a href="/tags/spi/" style="font-size: 10px;">spi</a> <a href="/tags/spring/" style="font-size: 18.46px;">spring</a> <a href="/tags/tomcat/" style="font-size: 10.77px;">tomcat</a> <a href="/tags/transaction/" style="font-size: 10px;">transaction</a> <a href="/tags/web/" style="font-size: 10px;">web</a> <a href="/tags/xSocket/" style="font-size: 14.62px;">xSocket</a> <a href="/tags/zbus/" style="font-size: 10px;">zbus</a> <a href="/tags/zookeeper/" style="font-size: 10.77px;">zookeeper</a> <a href="/tags/数据结构/" style="font-size: 10.77px;">数据结构</a>
    </div>
  </div>

  
    
  <div class="widget-wrap">
    <h3 class="widget-title">Archives</h3>
    <div class="widget">
      <ul class="archive-list"><li class="archive-list-item"><a class="archive-list-link" href="/archives/2016/01/">January 2016</a><span class="archive-list-count">67</span></li><li class="archive-list-item"><a class="archive-list-link" href="/archives/2015/12/">December 2015</a><span class="archive-list-count">81</span></li><li class="archive-list-item"><a class="archive-list-link" href="/archives/2015/11/">November 2015</a><span class="archive-list-count">2</span></li></ul>
    </div>
  </div>

  
    
  <div class="widget-wrap">
    <h3 class="widget-title">Recents</h3>
    <div class="widget">
      <ul>
        
          <li>
            <a href="/2016/01/30/资料/">(no title)</a>
          </li>
        
          <li>
            <a href="/2016/01/30/java/13.Classloader系列一/">ClassLoader系列一</a>
          </li>
        
          <li>
            <a href="/2016/01/29/hadoop/1.hadoop系列之源码编译/">hadoop系列一之源码编译</a>
          </li>
        
          <li>
            <a href="/2016/01/29/go/1.GO系列之入门/">Go系列一之入门</a>
          </li>
        
          <li>
            <a href="/2016/01/28/tomcat/2.tomcat性能优化/">tomcat性能优化</a>
          </li>
        
      </ul>
    </div>
  </div>

  
</aside>
        
      </div>
      <footer id="footer">
  
  <div class="outer">
    <div id="footer-info" class="inner">
      &copy; 2016 John Doe<br>
      Powered by <a href="http://hexo.io/" target="_blank">Hexo</a>
    </div>
  </div>
</footer>
    </div>
    <nav id="mobile-nav">
  
    <a href="/" class="mobile-nav-link">Home</a>
  
    <a href="/archives" class="mobile-nav-link">Archives</a>
  
</nav>
    


<script src="http://libs.baidu.com/jquery/2.0.3/jquery.min.js"></script>


  <link rel="stylesheet" href="/fancybox/jquery.fancybox.css" type="text/css">
  <script src="/fancybox/jquery.fancybox.pack.js" type="text/javascript"></script>


<script src="/js/script.js" type="text/javascript"></script>

  </div>
</body>
</html>